Some bacteria have developed a resistance to antibiotics through random mutations. One such mutaiton allows bacteria to produce enzymes that inactivate the antibiotics when they enter the bacteria whcih statement describes how this mutation occurs

The principle of evolution has come to play as well as natural selection.

Explanation:

According to Charles Darwin,organisms with variations that gives them favourable advantage thrive hence passing on such features to their offspring This is what accounts for the resistance of some bacteria to antibiotics.

some of your causes might be acidic rain or natural wildfires that cause the parks to be degraded

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stimulus is a change in the environment that causes an organism to react. the response is the reaction to the stimulus. some examples of stimuli for zebras are drought, to many predators, and bad feeding grounds such as dead grass or plants. zebras respond to stimuli just like all other living organisms